[Hurst index based analysis of ventricular tachycardia and ventricular fibrillation].

In our laboratory, the normal ECG signal, the ECG signals of ventricular tachycardia (VT) and of ventricular fibrillation (VF) are studied with the use of Hurst index value. The Hurst index values of the normal ECG signal, VT, VF are calculated separately. There exist obvious differences among the Hurst values of the three kinds of signals,but they are all higher than 0.5 which is a value indicating the long-term relevant character. The long-term relevant character of the normal ECG signal is the best, and the character of VT is better than that of VF. Therefore, the Hurst Index can be used as an identification criterion for distinguishing normal ECG, VT and VF.